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Cheap flights from London to Jeju-do from £423

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CJU
10 Jul — 17 Jul1
1 adult

Cheap flight deals from London to Jeju-do

Keep the following information in mind while searching for London to Jeju-do flight deals. Data was last updated 5 July 2025.

Round-trip from

£429

One-way from

£423

Popular in

August

Cheapest in

December

Average price

£742
Air China
  • Air China
  • 18/9-20/10
  • 2 total stops
  • 47h 20m total
  • London to Jeju-do
Search Deals
28/9
  • 28/9
  • 2 total stops
  • 17h 15m total
  • London to Jeju-do
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£183 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from London to Jeju-do

Cheapest flights from London to Jeju-do
Explore the most affordable flight options available from London to Jeju-do. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 July 2025.

Thu 18/920:25LHR - CJU
1 stop16h 50mAir China
Mon 20/1022:00CJU - LHR
1 stop30h 30mAir China
Deal found 3/7£429
Sun 21/921:00LHR - CJU
2 stops35h 15mMultiple Airlines
Fri 17/1022:00CJU - LHR
1 stop27h 45mMultiple Airlines
Deal found 3/7£624

Cheapflights Fare Finder

Customise your flight search to find flights from London to Jeju-do that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 July 2025.
Use the filters below to find and compare flights from London to Jeju-do that are best for you.

Fly from

London

Fly to

Jeju-do

Route

Depart

Return

Price

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Thu 18/9

20:25-21:15

1 stop16h 50m

Jeju City

Mon 20/10

22:00-20:30

1 stop30h 30m

£429

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Sun 21/9

21:00-16:15

2 stops35h 15m

Jeju City

Fri 17/10

22:00-17:45

1 stop27h 45m

£624

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Sun 28/9

09:30-10:45

2 stops17h 15m

£423

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Sat 27/9

22:40-21:05

1 stop14h 25m

£436

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Mon 29/9

20:40-21:35

1 stop16h 55m

£573

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Tue 30/9

19:35-20:20

1 stop16h 45m

£592

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Wed 1/10

22:05-13:05

1 stop31h 00m

£630

Flights are sorted by cheapest return flights first.

Deals found on 5/7

Best time to book a flight from London to Jeju-do

Have a flexible travel schedule? Discover the best time to fly to Jeju-do from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Jeju-do

How much does it cost for a return flight from London to Jeju-do?

Reviews of airlines servicing Jeju-do

Get insights into the airlines that provide service to Jeju-do. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Jeju-do. Reviews last updated 5 July 2025.
Check out reviews from past customers who have flown with Korean Air, Asiana Airlines, andAir China from London to Jeju-do to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,102 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,102 reviews
Korean Air
8.4
Very Good
1,102 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very Good
452 reviews
Korean Air
8.4
Very Good
1,102 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air China
7.3
Good
91 reviews
Korean Air
8.4
Very Good
1,102 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from London to Jeju-do. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from London to Jeju-do one-way?

    One-way options have recently been found by users for as low as £436 on Air China. Other airlines that offer cheap prices include Asiana Airlines from £573 and Korean Air from £592 one-way.

  • Can I find deals for flights from London to Jeju-do that include hotel bookings?

    Yes. In addition to deals on London to Jeju-do flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Jeju-do?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Jeju-do.

  • Can I find deals for business class flights from London to Jeju-do?

    Yes. Cheapflights offers flight deals from London to Jeju-do by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for London to Jeju-do

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from London to Jeju-do

Discover the top 2 airlines that operate flights from London to Jeju-do. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£362Average£496FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£843Average£936FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Jeju-do?

When you search for this flight from London to Jeju-do, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Jeju-do?

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Can Cheapflights find flights from London to Jeju-do with no change fees?

Yes! Cheapflights helps users easily find flights from London to Jeju-do with no change fees.

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